Tadashi Takahashi

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Direct-current power-supply apparatus, control circuit thereof and...
- Patent number 6,496,395
- Issue date Dec 17, 2002
- Hitachi Ltd.
- Norikazu Tokunaga
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of driving semiconductor switching device in non-saturated s...
- Patent number 6,381,152
- Issue date Apr 30, 2002
- Hitachi, Ltd.
- Tadashi Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery system and electric vehicle using the battery system
- Patent number 6,262,561
- Issue date Jul 17, 2001
- Hitachi, Ltd.
- Tadashi Takahashi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electric power storage air-conditioning system
- Patent number 6,002,220
- Issue date Dec 14, 1999
- Hitachi, Ltd.
- Tadashi Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for charging secondary batteries
- Patent number 5,903,136
- Issue date May 11, 1999
- Hitachi, Ltd.
- Tadashi Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply system for supplying electric power to a load through...
- Patent number 5,768,117
- Issue date Jun 16, 1998
- Hitachi, Ltd.
- Tadashi Takahashi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power supply apparatus having separate plural outputs
- Patent number 5,642,269
- Issue date Jun 24, 1997
- Hitachi, Ltd.
- Akihiko Kanouda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Parallelized power supply system providing uninterrupted operation
- Patent number 5,638,264
- Issue date Jun 10, 1997
- Hitachi, Ltd.
- Katsunori Hayashi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Electric power unit
- Patent number 5,610,449
- Issue date Mar 11, 1997
- Hitachi, Ltd.
- Tadashi Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current sensor system and detection method comprising magetoresista...
- Patent number 5,561,366
- Issue date Oct 1, 1996
- Hitachi, Ltd.
- Tadashi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Multi-output DC-DC convertor
- Patent number 5,559,682
- Issue date Sep 24, 1996
- Hitachi, Ltd.
- Akihiko Kanouda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flat transformer and power supply unit having flat transformer
- Patent number 5,502,430
- Issue date Mar 26, 1996
- Hitachi, Ltd.
- Tadashi Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical disk apparatus
- Patent number 5,453,972
- Issue date Sep 26, 1995
- Hitachi, Ltd.
- Hiroshi Kanazawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive unit having motor components in a compact arrangement
- Patent number 5,432,644
- Issue date Jul 11, 1995
- Hitachi, Ltd.
- Fumio Tajima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic sensor
- Patent number 5,351,027
- Issue date Sep 27, 1994
- Hitachi, Ltd.
- Syooichi Kawamata
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus magnetically detecting position or speed of moving body u...
- Patent number RE34443
- Issue date Nov 16, 1993
- Hitachi, Ltd.
- Tadashi Takahashi
- 324 - Electricity: measuring and testing
Information Patent Grant
Device for detecting rotation of rotary shaft and rotation controll...
- Patent number 5,239,490
- Issue date Aug 24, 1993
- Hitachi, Ltd.
- Ryoso Masaki
- G01 - MEASURING TESTING
Information Patent Grant
Magneto resistive sensor for detecting movement of a rotating body
- Patent number RE34355
- Issue date Aug 24, 1993
- Hitachi, Ltd.
- Tadashi Takahashi
- 324 - Electricity: measuring and testing
Information Patent Grant
Method and apparatus for detection of physical quantities, servomot...
- Patent number 5,218,279
- Issue date Jun 8, 1993
- Hitachi, Ltd.
- Tadashi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Motor-driven power steering apparatus
- Patent number 5,033,565
- Issue date Jul 23, 1991
- Hitachi, Ltd.
- Toshimi Abukawa
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Magnetic position detection apparatus having two magnetic recording...
- Patent number 5,019,776
- Issue date May 28, 1991
- Hitachi, Ltd.
- Syooichi Kawamata
- G01 - MEASURING TESTING
Information Patent Grant
Actuator with stepping motion function
- Patent number 4,983,893
- Issue date Jan 8, 1991
- Hitachi, Ltd.
- Kunio Miyashita
- G05 - CONTROLLING REGULATING
Information Patent Grant
Motor-driven power steering apparatus
- Patent number 4,960,178
- Issue date Oct 2, 1990
- Hitachi, Ltd.
- Toshimi Abukawa
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Torque detecting apparatus
- Patent number 4,939,435
- Issue date Jul 3, 1990
- Tadashi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Electric power steering apparatus for vehicle
- Patent number 4,926,960
- Issue date May 22, 1990
- Hitachi, Ltd.
- Hisatugu Ishikura
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Apparatus for magnetically detecting positions with minimum length...
- Patent number 4,904,937
- Issue date Feb 27, 1990
- Hitachi, Ltd.
- Tadashi Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electric power steering control system
- Patent number 4,875,539
- Issue date Oct 24, 1989
- Hitachi, Ltd.
- Toshimi Abukawa
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Torque detecting apparatus
- Patent number 4,874,053
- Issue date Oct 17, 1989
- Hitachi, Ltd.
- Hiroshi Kimura
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle height control apparatus responsive to power steering opera...
- Patent number 4,865,148
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Katsuji Marumoto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for magnetically detecting position or speed or moving bo...
- Patent number 4,818,939
- Issue date Apr 4, 1989
- Hitachi, Ltd.
- Tadashi Takahashi
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Direct-current power-supply apparatus, control circuit thereof and...
- Publication number 20010026462
- Publication date Oct 4, 2001
- Norikazu Tokunaga
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Tadashi Takahashi

Person

Patents Grantslast 30 patents

Direct-current power-supply apparatus, control circuit thereof and...

Method of driving semiconductor switching device in non-saturated s...

Battery system and electric vehicle using the battery system

Electric power storage air-conditioning system

Method for charging secondary batteries

Power supply system for supplying electric power to a load through...

Power supply apparatus having separate plural outputs

Parallelized power supply system providing uninterrupted operation

Electric power unit

Current sensor system and detection method comprising magetoresista...

Multi-output DC-DC convertor

Flat transformer and power supply unit having flat transformer

Optical disk apparatus

Disk drive unit having motor components in a compact arrangement

Magnetic sensor

Apparatus magnetically detecting position or speed of moving body u...

Device for detecting rotation of rotary shaft and rotation controll...

Magneto resistive sensor for detecting movement of a rotating body

Method and apparatus for detection of physical quantities, servomot...

Motor-driven power steering apparatus

Magnetic position detection apparatus having two magnetic recording...

Actuator with stepping motion function

Motor-driven power steering apparatus

Torque detecting apparatus

Electric power steering apparatus for vehicle

Apparatus for magnetically detecting positions with minimum length...

Electric power steering control system

Torque detecting apparatus

Vehicle height control apparatus responsive to power steering opera...

Apparatus for magnetically detecting position or speed or moving bo...

Patents Applicationslast 30 patents

Direct-current power-supply apparatus, control circuit thereof and...